Toro Groundmaster Series Service Manual page 177

Hydraulic Manifold Service (continued)
g297319
1. Manifold block
2. Straight fitting
3. Straight fitting (5 each)
4. Check valve – CV2
5. Solenoid coil (2 each)
6. Coil nut (2 each)
7. Solenoid valve – SV1
8. Solenoid valve – SV2
Groundsmaster ® 3200, 3300 and 3310
19240SL Rev A
(4WD Manifold – Models 31901/31902/31903/31907/31909)
9. Check valve – CV1
10. #6 zero-leak plug with O-ring (3
each)
11. Check valve – CV3/CV4
12. Elbow fitting
13. Diagnostic fitting (4 each)
14. Cap (4 each)
15. Filter nipple
16. Straight fitting (2 each)
The ports on the manifold are marked for easy identification of components
and connections. Example: P is the pressure connection port from the steering
control valve and SV1 is the location for the lift/lower solenoid valve; refer to the
hydraulic schematic in
hydraulic lines and cartridge valves at each port.
For cartridge valve service procedures, refer to
5–93).
The hydraulic manifold include several zero−leak plugs. These plugs have a
tapered sealing surface on the plug head that is designed to resist vibration
induced plug loosening. The zero−leak plugs also have an O−ring as a
secondary seal. If removing a zero−leak plug is necessary, lightly rap the plug
head using a punch and hammer before using a hex wrench to remove the plug:
the impact will allow plug removal with less chance of damage to the socket head
of the plug. Tighten the plugs to the torque value provided.
Figure 63
17.
18.
19.
20.
21.
22.
23.
24.
Appendix A (page A–1)
Page 5–91
Straight fitting
Check orifice – 0.100 inch – C1
Straight fitting
Elbow fitting
Logic cartridge – LC
Bi-directional relief valve – CRV
Elbow fitting
Control orifice – 0.040 inch – OR
to identify the function of the
Cartridge Valve Service (page
Hydraulic System: Service and Repairs